制作要点:
(1) 使用System.Windows.Threading.DispatcherTimer;
(2) 将Window属性设置为:
      this.WindowState = WindowState.Maximized;
      this.WindowStyle = WindowStyle.None;
      this.ResizeMode = ResizeMode.NoResize;
(3) 按ESC键时,关闭窗口。

关键代码:

System.Windows.Threading.DispatcherTimer frameTimer;
int lastTick;

public Window1()
{
InitializeComponent(); this.WindowState = WindowState.Maximized;
this.WindowStyle = WindowStyle.None;
this.ResizeMode = ResizeMode.NoResize; frameTimer = new System.Windows.Threading.DispatcherTimer();
frameTimer.Tick += OnFrame;
frameTimer.Interval = TimeSpan.FromSeconds(1.0 / 60.0);
frameTimer.Start(); this.lastTick = Environment.TickCount;
rand = new Random(this.GetHashCode());
this.Show();
this.KeyDown += new System.Windows.Input.KeyEventHandler(Window1_KeyDown);

//绘制屏保内容,可以是动画,也可以是动态更新的图片
// DrawingSomethings();
} void Window1_KeyDown(object sender, System.Windows.Input.KeyEventArgs e)
{
// 当按Esc按钮时关闭窗口,即中止屏保
if (e.Key == System.Windows.Input.Key.Escape)
this.Close();
} private void OnFrame(object sender, EventArgs e)
{
} //绘制屏保内容,可以是动画,也可以是动态更新的图片
private void DrawingSomethings()
{
// 代码.....
}